Social media post images are the currency of digital attention. Whether you are posting on Instagram, Facebook, Twitter, or LinkedIn, the quality and sizing of your image determines whether people stop scrolling. At imgresizr.com, you can create and resize social media post images for every platform at exactly the right dimensions — completely free.
Social Media Image Sizes at a Glance
| Platform | Feed Post Size | Story Size |
|---|---|---|
| 1080×1080px (square) | 1080×1920px | |
| 1200×630px | 1080×1920px | |
| Twitter / X | 1600×900px | 1080×1920px |
| 1200×627px | 1080×1920px | |
| 1000×1500px | 1080×1920px |
How to Create Social Media Images at imgresizr.com
Start with your source photo or graphic at the highest resolution available. Upload to imgresizr.com and use the Resize tool to set the exact dimensions for your target platform. If you need to recompose the image — for example, converting a landscape photo to a square for Instagram — use the Crop tool first with a 1:1 ratio, then resize to 1080×1080px. For platforms that display images with text overlaid (Facebook, Twitter), use the Caption tool to add headlines or calls to action. Apply the Enhance tool to make colours vivid and eye-catching — saturated, bright images stop the scroll. Compress to under 1MB for fast platform uploads.
Social Media Image Best Practices
- Create platform-specific versions — do not use the same size for every platform
- Bright, vivid, high-contrast images outperform dark, muted ones on all platforms
- Leave text-free zones in images that platforms overlay with UI elements
- Use the same editing style across all posts for a consistent brand look
- Test different crops — sometimes portrait (4:5) outperforms square on Instagram
Create perfectly sized social media images for every platform free at imgresizr.com.